peters



2 Sheets-Sheet 1. G. O. PYLE.

Machine for Punching Horseshoes.

No. 234,201. Patented Nov. 9,1880.

fizinessec: nfrzvenivrx Lee (mat 5 N- FEJERS. FHOTO-LITHOGRAPHER. WASHINGTON 0 (2V UNITED STATES PATENT EErcE.

GEORGE G. PYLE, OF WILMINGTON, DELAWARE, ASSIGNOR TO DANIEL H. KENT, OF SAME PLACE.

MACHINE FOR PUNCHING HORSESHOES.

SPECIFICATION forming part of Letters Patent No. 234,201, dated November 9, 1880.

Application filed October 2, 1879.

To all whom it may concern:

Be it known that I, GEORGE O. PYLE, of the city of Wilmington, county of New Castle, and State of Delaware, have invented certain new and useful Improvements in Machines for Punching Horseshoes, of which the following is a specification.

In the accompanying drawings, Figure 1 is a plan view, Fig. 2 a central vertical section, and Fig. 3 a front view, of my improved machine. Fig. 4. is a detail view of cam and head, and'part of the connecting parts, whereby the bed which holds the shoe while it is being punched is oscillated.

Like parts are indicated by like designatingletters in the several figures.

In the drawings, A represents the metal frame of the machine, which, of course, is very solid and strong. Power is applied, through the pulley A and gear A upon the shaft A to the gear A loosely placed upon the shaft A. From this latter shaft the punches receive their motive power.

The shoe to be punched is placed upon a bed-block, B, swinging upon a pivot, B, and having a holder, B shaped to conform to the interior of the shoe, and surrounded by openin gs b,-corresponding in location and number with the nail-holes to be punched. When the shoe is applied-which is done while the bedblock is swung outward to the position shown by the dotted lines in Fig. 2the operator sets the machine in operation through a foot-lever, O, which swings upon the pivot B, and with its inward extension raises a lever, C, so as to release said lever G from the stop 0 upon the elbow-lever 0 thus leaving the vertical lever 0 pivoted at 0 upon the frame, free to swing obedient to the spring 0 upon the shaft A This swing or change of position by the lever O shifts the moving part O to which it is connected, so that said part 0 clutches with the teeth upon the hub of the gear-wheel A. The part 0" encircles the shaft A and is keyed thereto by longitudinal ribs m, projecting from the periphery of the shaft.

It will thus be seen how the clutch is closed as the result of pressure by the operator upon the foot-lever. It now remains to connect the remaining parts with the shaft A to which motion is communicated by the clutch; and first I will describe the parts which oscillate the bed-block B at the proper times.

D is a cam rigidly fixed upon said shaft A. It rotates in aframe, D, and to its face is secured another cam, D which comes in contact, at each revolution, with a cam-projection, D upon said frame I). Said frame is adj ustably held in a large surrounding frame, D to the back of which are guides at, sliding in corresponding grooves in the main frame.

From the bottom of frame D depends a rigid arm, D to which are pivoted connecting-bars D and said connecting-bars are jointed to the elbow-lever 0 already mentioned. This elbow-lever is pivoted in the body of the machine at 0 and is connected, by bars D with the lower end of the bed-block B. It will thus be seen that when the cam D comes in contact with the projection D and raises the frame to which that projection is secured it also operates the elbow-lever, and through it and its connections draws the bottom of the bed-bl0ck inward and causes said block to assume the position shown by the dotted lines in Fig. 2. This is the initial position of the bedblock at the beginning of each operative movement.

The machine is started by depressing the trcadle G, and thereby lifting the lever C off the stop-pin-O This permits the spring 0 to move the clutch G into engagement with the driving-wheel A, and the shaft A is set in motion. When the contact between said cam D and projection D has ceased the frame D descends, causing the bed-block to swing to the position shown in Fig. 2 by the continuous lines, and a dwell ensues while the rounded edge of the cam D is passing the bottom of said frame. Vhen the frame D has descended to its lowest position the lever C will have advanced far enough to permit the lever O to drop behind the stop-pin 0 again. During this dwell the punching is done, and the punches are retracted before the contact between the cam D and projection D recominences. This contact gradually raises the frame and actuates the elbow-lever, as before, thereby tilting the bed-block forward again and crowding back the lever 0 actuating the shifting part of the clutch, and releasing the engagement between the shifting and station ary parts of the clutch. This operation, when complete, leaves the machine in its initial position ready to receive another shoe, with all the punching mechanism at rest.

At the time the frame I) is raised by the cam D the flattened side of the cam I) will bedown,and thustheframeis permitted torise. At other times the rounded edge is in contact 1 held down upon the bed-block while it is bewith said frame and holds it down firmly, and 1 1 holder or die upon the bed-block.

thereby, through the intermediate parts, the bed-block is securely retained in position during the punching operation.

The punching devices are arranged radially l at either side of the machine, so they will coincide with the openings in the bed-block.

They are constructed of punch-rods ll, each held in a holder, E, by a set-screw, c, said holder sliding in a groove upon the end of an upright frame, E There is such number of these upright frames as there are holes to be punched, and they are adiustable to or from each other, as their fastenings-to wit, the front and rear bolts Ii having their heads in circular grooves Ii on the bed of the main frame t permit any desired change in this regard. The punch-rods pass through and are braced and guided by openings through the forward projections, 1 1", of the upright frames E and they and their holders are forced down to their work of punching the shoe by levers E, pivoted in the outer ends of the upright frames, and resting at their forward ends in a recess, 0', in a head, I which is moved up and down by an eccentric, 1'1", upon the shaft A", and a square box, E, surrounding said eccentric, such movement being snflicient to give the requisite action to the punches. The continued rotation of the eccentric raises the head E and with it the levers 15. The punches follow the levers E upward by virtue of the connectingpieces E".

The box 15*, surrounding the cam, is loosely held in a receptacle, I in the head E and said head is in turn held in a recess in the main frame. The box Ii", of course, has free dom to move laterally in its recess in obedience to the movements of the eccentric; but it at all times bears squarely at the top and bottom of said recess.

F is a stationary keeper secured to the bed of the machine, and located as shown in the drawings,its function being to hold down the toe of the shoe during the punching, which it is caused to do by overlapping that part when the bed-block is swung back into the machine. I also provide at the front two keepers designed to press down upon the heels of the shoe during the same time. ers F are made in a single piece, as shown in Fig. 3, pivoted at either side of the bed-block to the main frame, as at I, and swung on such pivots by a comiecting-rod, F, extending to and attached to the bed-block. By these two devices the shoe is automatically and securely These keep- 5 ing operated upon, and they release their hold as soon as the bed-block begins to move out from under the punches.

(l is an arm secured to the main frame of the machine, extending around to the front of the bed-block, and provided with two fingers, g y, so located with reference to the bed-block that when the latter is tilted forward after each punching said fingers will catch under the heels of the shoe and loosen it from the The construction of the punches is such that the punches proper, which are the parts most likely to need repairs, may be easily replaced. Their inclination may be changed, also, by changing the upright frames, and as each punch is independent of the others, any one may be changed or removed at pleasure, and the machine may be used with a greater or less number, as desired.

The whole operation, after the shoe is placed upon the holder and the mechanism is set in motion, is automatic.

I claim- 1. The combination, in amachine for punchin g horseshoes, ofa series of independent nailhole punches arranged in the holders and surrounding the shoe-support, said holders being jointed to radial arms E and operated simultaneously by a sliding head, E",and an actuating-shaft, A said sliding head, and said shoe-support, substantially as specified.

2. In a machine for punching horseshoes, a series of nail-hole punches secured in independent holders arranged around the shoe-support and jointed to a series of radial arms, E, and a reciprocating head, E", whereby said punches are actuated simultaneously by motion derived from the main shaft, combined with a swinging bed-block and cams on the main driving-shaft, connecting-rods D D D", and intermediate bell-crank, 0 whereby said bed-block is automatically moved into and out of position, substantially as set forth.

3. The combination, in a horseshoe-punching machine, of the series of punches, the movable bed-block, the shaft A the cams, the eccentric, and the clutch upon said shaft, and the intermediate parts, whereby power is con veyed from said shaft to said punches and bed-block, substantially as set forth.

4. In a machine for punching horseshoes, the combination, with the punches and the moving bed-block, of the swinging keeper F, pivoted to the frame and operated by the i swinging bed-block to press down upon and hold the shoe during the punching operation, substantially as set forth.

5. The combination, in a horseshoe-punching machine, of the following instrumentalities, to wit: a series of independent punches, one for each nail-hole to he punched, mechanism for automatically operating said punches, a bed-block for supporting the shoe, moving in before and out after the operation of the punches, mechanism for operating said bed- I swinging bed-block B and actuating-shaft A block, and devices for holding the shoe upon the bed-block, substantially as specified.

6. The combination, with ahorseshoe-punch- 5 ing machine, of the punching mechanism described, consisting of inclined punch-rods, holders for said rods, sliding in the laterally-adjustable radial upright frames, the levers pivoted at one end to said frames, with their other 10 ends held in the vertically-n1oving head E",

and said head, substantially as set forth.

7. In a horseshoe-punching machine, the

provided with cams D D connecting-rods D and D", and intermediate bell-crank, 0 com- 15 bined with a clutch O controlling-lever G, and trip 0 0 whereby the forward swing of said bed-block causes the disengagement of said driving-shaft from the driving-gear A as set forth.

GEORGE O. PYLE. Witnesses:

H. M. MUNDAY, EDWARD S. EVARTS. 

